Home / 847,310.40-1,270,564.65-492,433.20

Finding the Fourth Proportional to 847,310.40, 1,270,564.65 and 492,433.20

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Solution

The fourth proportional to 847,310.40, 1,270,564.65 and 492,433.20 is: 738,416.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,310.40 : 1,270,564.65 = 492,433.20 : x
  2. Step 2: Convert to fraction form
    847,310.40/1,270,564.65 = 492,433.20/x
  3. Step 3: Cross multiply
    847,310.40x = 1,270,564.65 × 492,433.20
  4. Step 4: Simplify right side
    847,310.40x = 625,668,216,406.38
  5. Step 5: Solve for x
    x = 625,668,216,406.38/847,310.40
  6. Step 6: Final answer
    x = 738,416.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.